// Flat ESLint config for BFF (ESLint v9)
const js = require('@eslint/js');
const tsParser = require('@typescript-eslint/parser');
const tsPlugin = require('@typescript-eslint/eslint-plugin');
const prettierPlugin = require('eslint-plugin-prettier');

module.exports = [
  { ignores: ['dist/**', 'node_modules/**'] },
  {
    files: ['**/*.ts', '**/*.tsx'],
    languageOptions: {
      parser: tsParser,
      parserOptions: {
        project: './tsconfig.json',
        tsconfigRootDir: __dirname,
        sourceType: 'module',
      },
    },
    plugins: {
      '@typescript-eslint': tsPlugin,
      prettier: prettierPlugin,
    },
    rules: {
      ...js.configs.recommended.rules,
      'prettier/prettier': 'warn',
      '@typescript-eslint/consistent-type-imports': 'error',
      '@typescript-eslint/no-misused-promises': ['error', { checksVoidReturn: false }],
      '@typescript-eslint/no-explicit-any': 'off',
      'no-console': ['warn', { allow: ['warn', 'error'] }],
      // Prefer TS variants of core rules
      'no-unused-vars': 'off',
      '@typescript-eslint/no-unused-vars': [
        'warn',
        { argsIgnorePattern: '^_', varsIgnorePattern: '^_' },
      ],
      'no-redeclare': 'off',
      '@typescript-eslint/no-redeclare': [
        'error',
        { ignoreDeclarationMerge: true },
      ],
    },
  },
];